/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#undef GTK_DISABLE_DEPRECATED
#include <gtk/gtk.h>
#include "gailwindow.h"
#include "gailtoplevel.h"
#include "gail-private-macros.h"
enum {
ACTIVATE,
CREATE,
DEACTIVATE,
DESTROY,
MAXIMIZE,
MINIMIZE,
MOVE,
RESIZE,
RESTORE,
LAST_SIGNAL
};
static void gail_window_class_init (GailWindowClass *klass);
static void gail_window_init (GailWindow *accessible);
static void gail_window_real_initialize (AtkObject *obj,
gpointer data);
static void gail_window_finalize (GObject *object);
static const gchar* gail_window_get_name (AtkObject *accessible);
static AtkObject* gail_window_get_parent (AtkObject *accessible);
static gint gail_window_get_index_in_parent (AtkObject *accessible);
static gboolean gail_window_real_focus_gtk (GtkWidget *widget,
GdkEventFocus *event);
static AtkStateSet* gail_window_ref_state_set (AtkObject *accessible);
static AtkRelationSet* gail_window_ref_relation_set (AtkObject *accessible);
static void gail_window_real_notify_gtk (GObject *obj,
GParamSpec *pspec);
static gint gail_window_get_mdi_zorder (AtkComponent *component);
static gboolean gail_window_state_event_gtk (GtkWidget *widget,
GdkEventWindowState *event);
/* atkcomponent.h */
static void atk_component_interface_init (AtkComponentIface *iface);
static void gail_window_get_extents (AtkComponent *component,
gint *x,
gint *y,
gint *width,
gint *height,
AtkCoordType coord_type);
static void gail_window_get_size (AtkComponent *component,
gint *width,
gint *height);
static guint gail_window_signals [LAST_SIGNAL] = { 0, };
G_DEFINE_TYPE_WITH_CODE (GailWindow, gail_window, GAIL_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
static void
gail_window_class_init (GailWindowClass *klass)
{
GailWidgetClass *widget_class;
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
gobject_class->finalize = gail_window_finalize;
widget_class = (GailWidgetClass*)klass;
widget_class->focus_gtk = gail_window_real_focus_gtk;
widget_class->notify_gtk = gail_window_real_notify_gtk;
class->get_name = gail_window_get_name;
class->get_parent = gail_window_get_parent;
class->get_index_in_parent = gail_window_get_index_in_parent;
class->ref_relation_set = gail_window_ref_relation_set;
class->ref_state_set = gail_window_ref_state_set;
class->initialize = gail_window_real_initialize;
gail_window_signals [ACTIVATE] =
g_signal_new ("activate",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [CREATE] =
g_signal_new ("create",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [DEACTIVATE] =
g_signal_new ("deactivate",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [DESTROY] =
g_signal_new ("destroy",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [MAXIMIZE] =
g_signal_new ("maximize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [MINIMIZE] =
g_signal_new ("minimize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [MOVE] =
g_signal_new ("move",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [RESIZE] =
g_signal_new ("resize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gail_window_signals [RESTORE] =
g_signal_new ("restore",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, /* default signal handler */
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
gail_window_init (GailWindow *accessible)
{
}
static void
gail_window_real_initialize (AtkObject *obj,
gpointer data)
{
GtkWidget *widget = GTK_WIDGET (data);
GailWindow *window;
/*
* A GailWindow can be created for a GtkHandleBox or a GtkWindow
*/
if (!GTK_IS_WINDOW (widget) &&
!GTK_IS_HANDLE_BOX (widget))
gail_return_if_fail (FALSE);
ATK_OBJECT_CLASS (gail_window_parent_class)->initialize (obj, data);
window = GAIL_WINDOW (obj);
window->name_change_handler = 0;
window->previous_name = g_strdup (gtk_window_get_title (GTK_WINDOW (data)));
g_signal_connect (data,
"window_state_event",
G_CALLBACK (gail_window_state_event_gtk),
NULL);
g_object_set_data (G_OBJECT (obj), "atk-component-layer",
GINT_TO_POINTER (ATK_LAYER_WINDOW));
if (GTK_IS_FILE_SELECTION (widget))
obj->role = ATK_ROLE_FILE_CHOOSER;
else if (GTK_IS_COLOR_SELECTION_DIALOG (widget))
obj->role = ATK_ROLE_COLOR_CHOOSER;
else if (GTK_IS_FONT_SELECTION_DIALOG (widget))
obj->role = ATK_ROLE_FONT_CHOOSER;
else if (GTK_IS_MESSAGE_DIALOG (widget))
obj->role = ATK_ROLE_ALERT;
else if (GTK_IS_DIALOG (widget))
obj->role = ATK_ROLE_DIALOG;
else
{
const gchar *name;
name = gtk_widget_get_name (widget);
if (name && (!strcmp (name, "gtk-tooltip") ||
!strcmp (name, "gtk-tooltips")))
obj->role = ATK_ROLE_TOOL_TIP;
else if (GTK_IS_PLUG (widget))
obj->role = ATK_ROLE_PANEL;
else if (GTK_WINDOW (widget)->type == GTK_WINDOW_POPUP)
obj->role = ATK_ROLE_WINDOW;
else
obj->role = ATK_ROLE_FRAME;
}
/*
* Notify that tooltip is showing
*/
if (obj->role == ATK_ROLE_TOOL_TIP &&
gtk_widget_get_mapped (widget))
atk_object_notify_state_change (obj, ATK_STATE_SHOWING, 1);
}
static void
gail_window_finalize (GObject *object)
{
GailWindow* window = GAIL_WINDOW (object);
if (window->name_change_handler)
{
g_source_remove (window->name_change_handler);
window->name_change_handler = 0;
}
if (window->previous_name)
{
g_free (window->previous_name);
window->previous_name = NULL;
}
G_OBJECT_CLASS (gail_window_parent_class)->finalize (object);
}
static const gchar*
gail_window_get_name (AtkObject *accessible)
{
const gchar* name;
name = ATK_OBJECT_CLASS (gail_window_parent_class)->get_name (accessible);
if (name == NULL)
{
/*
* Get the window title if it exists
*/
GtkWidget* widget = GTK_ACCESSIBLE (accessible)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return NULL;
gail_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
if (GTK_IS_WINDOW (widget))
{
GtkWindow *window = GTK_WINDOW (widget);
name = gtk_window_get_title (window);
if (name == NULL &&
accessible->role == ATK_ROLE_TOOL_TIP)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (window));
/* could be some kind of egg notification bubble thingy? */
/* Handle new GTK+ GNOME 2.20 tooltips */
if (GTK_IS_ALIGNMENT(child))
{
child = gtk_bin_get_child (GTK_BIN (child));
if (GTK_IS_BOX(child))
{
GList *children;
guint count;
children = gtk_container_get_children (GTK_CONTAINER (child));
count = g_list_length (children);
if (count == 2)
{
child = (GtkWidget *) g_list_nth_data (children, 1);
}
g_list_free (children);
}
}
if (!GTK_IS_LABEL (child))
{
g_message ("ATK_ROLE_TOOLTIP object found, but doesn't look like a tooltip.");
return NULL;
}
name = gtk_label_get_text (GTK_LABEL (child));
}
}
}
return name;
}
static AtkObject*
gail_window_get_parent (AtkObject *accessible)
{
AtkObject* parent;
parent = ATK_OBJECT_CLASS (gail_window_parent_class)->get_parent (accessible);
return parent;
}
static gint
gail_window_get_index_in_parent (AtkObject *accessible)
{
GtkWidget* widget = GTK_ACCESSIBLE (accessible)->widget;
AtkObject* atk_obj = atk_get_root ();
gint index = -1;
if (widget == NULL)
/*
* State is defunct
*/
return -1;
gail_return_val_if_fail (GTK_IS_WIDGET (widget), -1);
index = ATK_OBJECT_CLASS (gail_window_parent_class)->get_index_in_parent (accessible);
if (index != -1)
return index;
if (GTK_IS_WINDOW (widget))
{
GtkWindow *window = GTK_WINDOW (widget);
if (GAIL_IS_TOPLEVEL (atk_obj))
{
GailToplevel* toplevel = GAIL_TOPLEVEL (atk_obj);
index = g_list_index (toplevel->window_list, window);
}
else
{
int i, sibling_count = atk_object_get_n_accessible_children (atk_obj);
for (i = 0; i < sibling_count && index == -1; ++i)
{
AtkObject *child = atk_object_ref_accessible_child (atk_obj, i);
if (accessible == child) index = i;
g_object_unref (G_OBJECT (child));
}
}
}
return index;
}
static gboolean
gail_window_real_focus_gtk (GtkWidget *widget,
GdkEventFocus *event)
{
AtkObject* obj;
obj = gtk_widget_get_accessible (widget);
atk_object_notify_state_change (obj, ATK_STATE_ACTIVE, event->in);
return FALSE;
}
static AtkRelationSet*
gail_window_ref_relation_set (AtkObject *obj)
{
GtkWidget *widget;
AtkRelationSet *relation_set;
AtkObject *array[1];
AtkRelation* relation;
GtkWidget *current_widget;
gail_return_val_if_fail (GAIL_IS_WIDGET (obj), NULL);
widget = GTK_ACCESSIBLE (obj)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return NULL;
relation_set = ATK_OBJECT_CLASS (gail_window_parent_class)->ref_relation_set (obj);
if (atk_object_get_role (obj) == ATK_ROLE_TOOL_TIP)
{
relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_POPUP_FOR);
if (relation)
{
atk_relation_set_remove (relation_set, relation);
}
if (gtk_widget_get_visible(widget) && gtk_tooltips_get_info_from_tip_window (GTK_WINDOW (widget), NULL, ¤t_widget))
{
array [0] = gtk_widget_get_accessible (current_widget);
relation = atk_relation_new (array, 1, ATK_RELATION_POPUP_FOR);
atk_relation_set_add (relation_set, relation);
g_object_unref (relation);
}
}
return relation_set;
}
static AtkStateSet*
gail_window_ref_state_set (AtkObject *accessible)
{
AtkStateSet *state_set;
GtkWidget *widget;
GtkWindow *window;
GdkWindowState state;
state_set = ATK_OBJECT_CLASS (gail_window_parent_class)->ref_state_set (accessible);
widget = GTK_ACCESSIBLE (accessible)->widget;
if (widget == NULL)
return state_set;
window = GTK_WINDOW (widget);
if (window->has_focus)
atk_state_set_add_state (state_set, ATK_STATE_ACTIVE);
if (widget->window)
{
state = gdk_window_get_state (widget->window);
if (state & GDK_WINDOW_STATE_ICONIFIED)
atk_state_set_add_state (state_set, ATK_STATE_ICONIFIED);
}
if (gtk_window_get_modal (window))
atk_state_set_add_state (state_set, ATK_STATE_MODAL);
if (gtk_window_get_resizable (window))
atk_state_set_add_state (state_set, ATK_STATE_RESIZABLE);
return state_set;
}
static gboolean
idle_notify_name_change (gpointer data)
{
GailWindow *window;
AtkObject *obj;
window = GAIL_WINDOW (data);
window->name_change_handler = 0;
if (GTK_ACCESSIBLE (window)->widget == NULL)
return FALSE;
obj = ATK_OBJECT (window);
if (obj->name == NULL)
{
/*
* The title has changed so notify a change in accessible-name
*/
g_object_notify (G_OBJECT (obj), "accessible-name");
}
g_signal_emit_by_name (obj, "visible_data_changed");
return FALSE;
}
static void
gail_window_real_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkWidget *widget = GTK_WIDGET (obj);
AtkObject* atk_obj = gtk_widget_get_accessible (widget);
GailWindow *window = GAIL_WINDOW (atk_obj);
const gchar *name;
gboolean name_changed = FALSE;
if (strcmp (pspec->name, "title") == 0)
{
name = gtk_window_get_title (GTK_WINDOW (widget));
if (name)
{
if (window->previous_name == NULL ||
strcmp (name, window->previous_name) != 0)
name_changed = TRUE;
}
else if (window->previous_name != NULL)
name_changed = TRUE;
if (name_changed)
{
g_free (window->previous_name);
window->previous_name = g_strdup (name);
if (window->name_change_handler == 0)
window->name_change_handler = gdk_threads_add_idle (idle_notify_name_change, atk_obj);
}
}
else
GAIL_WIDGET_CLASS (gail_window_parent_class)->notify_gtk (obj, pspec);
}
static gboolean
gail_window_state_event_gtk (GtkWidget *widget,
GdkEventWindowState *event)
{
AtkObject* obj;
obj = gtk_widget_get_accessible (widget);
atk_object_notify_state_change (obj, ATK_STATE_ICONIFIED,
(event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
return FALSE;
}
static void
atk_component_interface_init (AtkComponentIface *iface)
{
iface->get_extents = gail_window_get_extents;
iface->get_size = gail_window_get_size;
iface->get_mdi_zorder = gail_window_get_mdi_zorder;
}
static void
gail_window_get_extents (AtkComponent *component,
gint *x,
gint *y,
gint *width,
gint *height,
AtkCoordType coord_type)
{
GtkWidget *widget = GTK_ACCESSIBLE (component)->widget;
GdkRectangle rect;
gint x_toplevel, y_toplevel;
if (widget == NULL)
/*
* State is defunct
*/
return;
gail_return_if_fail (GTK_IS_WINDOW (widget));
if (!gtk_widget_is_toplevel (widget))
{
AtkComponentIface *parent_iface;
parent_iface = (AtkComponentIface *) g_type_interface_peek_parent (ATK_COMPONENT_GET_IFACE (component));
parent_iface->get_extents (component, x, y, width, height, coord_type);
return;
}
gdk_window_get_frame_extents (widget->window, &rect);
*width = rect.width;
*height = rect.height;
if (!gtk_widget_is_drawable (widget))
{
*x = G_MININT;
*y = G_MININT;
return;
}
*x = rect.x;
*y = rect.y;
if (coord_type == ATK_XY_WINDOW)
{
gdk_window_get_origin (widget->window, &x_toplevel, &y_toplevel);
*x -= x_toplevel;
*y -= y_toplevel;
}
}
static void
gail_window_get_size (AtkComponent *component,
gint *width,
gint *height)
{
GtkWidget *widget = GTK_ACCESSIBLE (component)->widget;
GdkRectangle rect;
if (widget == NULL)
/*
* State is defunct
*/
return;
gail_return_if_fail (GTK_IS_WINDOW (widget));
if (!gtk_widget_is_toplevel (widget))
{
AtkComponentIface *parent_iface;
parent_iface = (AtkComponentIface *) g_type_interface_peek_parent (ATK_COMPONENT_GET_IFACE (component));
parent_iface->get_size (component, width, height);
return;
}
gdk_window_get_frame_extents (widget->window, &rect);
*width = rect.width;
*height = rect.height;
}
#if defined (GDK_WINDOWING_X11)
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <gdk/x11/gdkx.h>
/* _NET_CLIENT_LIST_STACKING monitoring */
typedef struct {
Window *stacked_windows;
int stacked_windows_len;
GdkWindow *root_window;
guint update_handler;
int *desktop;
guint update_desktop_handler;
gboolean *desktop_changed;
guint screen_initialized : 1;
guint update_stacked_windows : 1;
} GailScreenInfo;
static GailScreenInfo *gail_screens = NULL;
static int num_screens = 0;
static Atom _net_client_list_stacking = None;
static Atom _net_wm_desktop = None;
static gint
get_window_desktop (Window window)
{
Atom ret_type;
int format;
gulong nitems;
gulong bytes_after;
guchar *cardinals;
int error;
int result;
int desktop;
if (_net_wm_desktop == None)
_net_wm_desktop =
XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "_NET_WM_DESKTOP", False);
gdk_error_trap_push ();
result = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), window, _net_wm_desktop,
0, G_MAXLONG,
False, XA_CARDINAL,
&ret_type, &format, &nitems,
&bytes_after, &cardinals);
error = gdk_error_trap_pop();
/* nitems < 1 will occur if the property is not set */
if (error != Success || result != Success || nitems < 1)
return -1;
desktop = *cardinals;
XFree (cardinals);
if (nitems != 1)
return -1;
return desktop;
}
static void
free_screen_info (GailScreenInfo *info)
{
if (info->stacked_windows)
XFree (info->stacked_windows);
if (info->desktop)
g_free (info->desktop);
if (info->desktop_changed)
g_free (info->desktop_changed);
info->stacked_windows = NULL;
info->stacked_windows_len = 0;
info->desktop = NULL;
info->desktop_changed = NULL;
}
static gboolean
get_stacked_windows (GailScreenInfo *info)
{
Atom ret_type;
int format;
gulong nitems;
gulong bytes_after;
guchar *data;
int error;
int result;
int i;
int j;
int *desktops;
gboolean *desktops_changed;
if (_net_client_list_stacking == None)
_net_client_list_stacking =
XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "_NET_CLIENT_LIST_STACKING", False);
gdk_error_trap_push ();
ret_type = None;
result = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
GDK_WINDOW_XWINDOW (info->root_window),
_net_client_list_stacking,
0, G_MAXLONG,
False, XA_WINDOW, &ret_type, &format, &nitems,
&bytes_after, &data);
error = gdk_error_trap_pop ();
/* nitems < 1 will occur if the property is not set */
if (error != Success || result != Success || nitems < 1)
{
free_screen_info (info);
return FALSE;
}
if (ret_type != XA_WINDOW)
{
XFree (data);
free_screen_info (info);
return FALSE;
}
desktops = g_malloc0 (nitems * sizeof (int));
desktops_changed = g_malloc0 (nitems * sizeof (gboolean));
for (i = 0; i < nitems; i++)
{
gboolean window_found = FALSE;
for (j = 0; j < info->stacked_windows_len; j++)
{
if (info->stacked_windows [j] == data [i])
{
desktops [i] = info->desktop [j];
desktops_changed [i] = info->desktop_changed [j];
window_found = TRUE;
break;
}
}
if (!window_found)
{
desktops [i] = get_window_desktop (data [i]);
desktops_changed [i] = FALSE;
}
}
free_screen_info (info);
info->stacked_windows = (Window*) data;
info->stacked_windows_len = nitems;
info->desktop = desktops;
info->desktop_changed = desktops_changed;
return TRUE;
}
static gboolean
update_screen_info (gpointer data)
{
int screen_n = GPOINTER_TO_INT (data);
gail_screens [screen_n].update_handler = 0;
gail_screens [screen_n].update_stacked_windows = FALSE;
get_stacked_windows (&gail_screens [screen_n]);
return FALSE;
}
static gboolean
update_desktop_info (gpointer data)
{
int screen_n = GPOINTER_TO_INT (data);
GailScreenInfo *info;
int i;
info = &gail_screens [screen_n];
info->update_desktop_handler = 0;
for (i = 0; i < info->stacked_windows_len; i++)
{
if (info->desktop_changed [i])
{
info->desktop [i] = get_window_desktop (info->stacked_windows [i]);
info->desktop_changed [i] = FALSE;
}
}
return FALSE;
}
static GdkFilterReturn
filter_func (GdkXEvent *gdkxevent,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = gdkxevent;
if (xevent->type == PropertyNotify)
{
if (xevent->xproperty.atom == _net_client_list_stacking)
{
int screen_n;
GdkWindow *window;
window = event->any.window;
if (window)
{
screen_n = gdk_screen_get_number (gdk_window_get_screen (window));
gail_screens [screen_n].update_stacked_windows = TRUE;
if (!gail_screens [screen_n].update_handler)
{
gail_screens [screen_n].update_handler = gdk_threads_add_idle (update_screen_info,
GINT_TO_POINTER (screen_n));
}
}
}
else if (xevent->xproperty.atom == _net_wm_desktop)
{
int i;
int j;
GailScreenInfo *info;
for (i = 0; i < num_screens; i++)
{
info = &gail_screens [i];
for (j = 0; j < info->stacked_windows_len; j++)
{
if (xevent->xany.window == info->stacked_windows [j])
{
info->desktop_changed [j] = TRUE;
if (!info->update_desktop_handler)
{
info->update_desktop_handler = gdk_threads_add_idle (update_desktop_info,
GINT_TO_POINTER (i));
}
break;
}
}
}
}
}
return GDK_FILTER_CONTINUE;
}
static void
display_closed (GdkDisplay *display,
gboolean is_error)
{
int i;
for (i = 0; i < num_screens; i++)
{
if (gail_screens [i].update_handler)
{
g_source_remove (gail_screens [i].update_handler);
gail_screens [i].update_handler = 0;
}
if (gail_screens [i].update_desktop_handler)
{
g_source_remove (gail_screens [i].update_desktop_handler);
gail_screens [i].update_desktop_handler = 0;
}
free_screen_info (&gail_screens [i]);
}
g_free (gail_screens);
gail_screens = NULL;
num_screens = 0;
}
static void
init_gail_screens (void)
{
GdkDisplay *display;
display = gdk_display_get_default ();
num_screens = gdk_display_get_n_screens (display);
gail_screens = g_new0 (GailScreenInfo, num_screens);
gdk_window_add_filter (NULL, filter_func, NULL);
g_signal_connect (display, "closed", G_CALLBACK (display_closed), NULL);
}
static void
init_gail_screen (GdkScreen *screen,
int screen_n)
{
XWindowAttributes attrs;
gail_screens [screen_n].root_window = gdk_screen_get_root_window (screen);
get_stacked_windows (&gail_screens [screen_n]);
XGetWindowAttributes (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
GDK_WINDOW_XWINDOW (gail_screens [screen_n].root_window),
&attrs);
XSelectInput (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
GDK_WINDOW_XWINDOW (gail_screens [screen_n].root_window),
attrs.your_event_mask | PropertyChangeMask);
gail_screens [screen_n].screen_initialized = TRUE;
}
static GailScreenInfo *
get_screen_info (GdkScreen *screen)
{
int screen_n;
gail_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
screen_n = gdk_screen_get_number (screen);
if (gail_screens && gail_screens [screen_n].screen_initialized)
return &gail_screens [screen_n];
if (!gail_screens)
init_gail_screens ();
g_assert (gail_screens != NULL);
init_gail_screen (screen, screen_n);
g_assert (gail_screens [screen_n].screen_initialized);
return &gail_screens [screen_n];
}
static gint
get_window_zorder (GdkWindow *window)
{
GailScreenInfo *info;
Window xid;
int i;
int zorder;
int w_desktop;
gail_return_val_if_fail (GDK_IS_WINDOW (window), -1);
info = get_screen_info (gdk_window_get_screen (window));
gail_return_val_if_fail (info->stacked_windows != NULL, -1);
xid = GDK_WINDOW_XID (window);
w_desktop = -1;
for (i = 0; i < info->stacked_windows_len; i++)
{
if (info->stacked_windows [i] == xid)
{
w_desktop = info->desktop[i];
break;
}
}
if (w_desktop < 0)
return w_desktop;
zorder = 0;
for (i = 0; i < info->stacked_windows_len; i++)
{
if (info->stacked_windows [i] == xid)
{
return zorder;
}
else
{
if (info->desktop[i] == w_desktop)
zorder++;
}
}
return -1;
}
static gint
gail_window_get_mdi_zorder (AtkComponent *component)
{
GtkWidget *widget = GTK_ACCESSIBLE (component)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return -1;
gail_return_val_if_fail (GTK_IS_WINDOW (widget), -1);
return get_window_zorder (widget->window);
}
#elif defined (GDK_WINDOWING_WIN32)
static gint
gail_window_get_mdi_zorder (AtkComponent *component)
{
GtkWidget *widget = GTK_ACCESSIBLE (component)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return -1;
gail_return_val_if_fail (GTK_IS_WINDOW (widget), -1);
return 0; /* Punt, FIXME */
}
#else
static gint
gail_window_get_mdi_zorder (AtkComponent *component)
{
GtkWidget *widget = GTK_ACCESSIBLE (component)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return -1;
gail_return_val_if_fail (GTK_IS_WINDOW (widget), -1);
return 0; /* Punt, FIXME */
}
#endif